1200201113101 has 4 divisors (see below), whose sum is σ = 1200978950752. Its totient is φ = 1199423275452.

The previous prime is 1200201113021. The next prime is 1200201113107. The reversal of 1200201113101 is 1013111020021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200201113101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200201113107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388916511 + ... + 388919596.

It is an arithmetic number, because the mean of its divisors is an integer number (300244737688).

Almost surely, 2^{1200201113101} is an apocalyptic number.

It is an amenable number.

1200201113101 is a deficient number, since it is larger than the sum of its proper divisors (777837651).

1200201113101 is an equidigital number, since it uses as much as digits as its factorization.

1200201113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777837650.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1200201113101 its reverse (1013111020021), we get a palindrome (2213312133122).

The spelling of 1200201113101 in words is "one trillion, two hundred billion, two hundred one million, one hundred thirteen thousand, one hundred one".